ISSN:
1434-0879
Keywords:
Laser lithotripsy
;
Nd-YAG laser
;
Irrigation solution
;
Iron-III-dextran
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary With a high intensity Q-switched Nd-YAG laser shock waves can be generated in a liquid close to the calculus. Up to 80 mJ single pulse energy with 8 nsec pulse duration can be transmitted through flexible quartz fibers. Energy conversion and enhancement can be accomplished at the fiber tip with optical focussing of the light at the quartz tip, with irrigation solutions and with high pulse energies. Iron-III-dextran solutions (1 mg Fe3+/1) and magnesium chloride (50 mmol/l) increased the pressure in the laser induced breakdown up to ten times (8,000–10,000 bar). Smaller stone particles and higher efficacy in stone fragmentation could be achieved.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00294582
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